#include<stdio.h>

int main(int argc, char const *argv[])
{
    int n,s,a,b;
    scanf("%d %d\n%d %d",&n,&s,&a,&b);
    int applearr[5000][2];
    float weigharr[5000];
    for (int i = 0; i < n; i++)
    {
        scanf("%d %d",&applearr[i][0],&applearr[i][1]);
        weigharr[i] = applearr[i][0]/applearr[i][1];
    }
    
    
    

    return 0;
}
